Home / 7,222.97-10,831.21-3,325.25

Finding the Fourth Proportional to 7,222.97, 10,831.21 and 3,325.25

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Solution

The fourth proportional to 7,222.97, 10,831.21 and 3,325.25 is: 4,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.97 : 10,831.21 = 3,325.25 : x
  2. Step 2: Convert to fraction form
    7,222.97/10,831.21 = 3,325.25/x
  3. Step 3: Cross multiply
    7,222.97x = 10,831.21 × 3,325.25
  4. Step 4: Simplify right side
    7,222.97x = 36,016,481.05
  5. Step 5: Solve for x
    x = 36,016,481.05/7,222.97
  6. Step 6: Final answer
    x = 4,986.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.